HK1004038A1 - Ground detecting method for inverter unit and apparatus therefor - Google Patents

Ground detecting method for inverter unit and apparatus therefor

Info

Publication number
HK1004038A1
HK1004038A1 HK98103250A HK98103250A HK1004038A1 HK 1004038 A1 HK1004038 A1 HK 1004038A1 HK 98103250 A HK98103250 A HK 98103250A HK 98103250 A HK98103250 A HK 98103250A HK 1004038 A1 HK1004038 A1 HK 1004038A1
Authority
HK
Hong Kong
Prior art keywords
detecting method
inverter unit
apparatus therefor
ground detecting
ground
Prior art date
Application number
HK98103250A
Inventor
Nobuhiro Mikami
Original Assignee
Mitsubishi Electric Corp
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Mitsubishi Electric Corp filed Critical Mitsubishi Electric Corp
Publication of HK1004038A1 publication Critical patent/HK1004038A1/en

Links

Classifications

    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
    • H02H7/00—Emergency protective circuit arrangements specially adapted for specific types of electric machines or apparatus or for sectionalised protection of cable or line systems, and effecting automatic switching in the event of an undesired change from normal working conditions
    • H02H7/10—Emergency protective circuit arrangements specially adapted for specific types of electric machines or apparatus or for sectionalised protection of cable or line systems, and effecting automatic switching in the event of an undesired change from normal working conditions for converters; for rectifiers
    • H02H7/12—Emergency protective circuit arrangements specially adapted for specific types of electric machines or apparatus or for sectionalised protection of cable or line systems, and effecting automatic switching in the event of an undesired change from normal working conditions for converters; for rectifiers for static converters or rectifiers
    • H02H7/122—Emergency protective circuit arrangements specially adapted for specific types of electric machines or apparatus or for sectionalised protection of cable or line systems, and effecting automatic switching in the event of an undesired change from normal working conditions for converters; for rectifiers for static converters or rectifiers for inverters, i.e. dc/ac converters
    • H02H7/1227—Emergency protective circuit arrangements specially adapted for specific types of electric machines or apparatus or for sectionalised protection of cable or line systems, and effecting automatic switching in the event of an undesired change from normal working conditions for converters; for rectifiers for static converters or rectifiers for inverters, i.e. dc/ac converters responsive to abnormalities in the output circuit, e.g. short circuit
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
    • H02H3/00—Emergency protective circuit arrangements for automatic disconnection directly responsive to an undesired change from normal electric working condition with or without subsequent reconnection ; integrated protection
    • H02H3/26—Emergency protective circuit arrangements for automatic disconnection directly responsive to an undesired change from normal electric working condition with or without subsequent reconnection ; integrated protection responsive to difference between voltages or between currents; responsive to phase angle between voltages or between currents
    • H02H3/32—Emergency protective circuit arrangements for automatic disconnection directly responsive to an undesired change from normal electric working condition with or without subsequent reconnection ; integrated protection responsive to difference between voltages or between currents; responsive to phase angle between voltages or between currents involving comparison of the voltage or current values at corresponding points in different conductors of a single system, e.g. of currents in go and return conductors
    • H02H3/34—Emergency protective circuit arrangements for automatic disconnection directly responsive to an undesired change from normal electric working condition with or without subsequent reconnection ; integrated protection responsive to difference between voltages or between currents; responsive to phase angle between voltages or between currents involving comparison of the voltage or current values at corresponding points in different conductors of a single system, e.g. of currents in go and return conductors of a three-phase system

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Inverter Devices (AREA)
  • Emergency Protection Circuit Devices (AREA)
HK98103250A 1992-09-08 1998-04-17 Ground detecting method for inverter unit and apparatus therefor HK1004038A1 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US07/941,801 US5483167A (en) 1992-09-08 1992-09-08 Computer controlled ground detecting method for inverter unit and apparatus therefor
GB9219560A GB2270809B (en) 1992-09-08 1992-09-16 Ground detecting method for inverter unit and apparatus therefor
DE4231351A DE4231351C2 (en) 1992-09-08 1992-09-18 Earth fault detection method and device

Publications (1)

Publication Number Publication Date
HK1004038A1 true HK1004038A1 (en) 1998-11-13

Family

ID=27204231

Family Applications (1)

Application Number Title Priority Date Filing Date
HK98103250A HK1004038A1 (en) 1992-09-08 1998-04-17 Ground detecting method for inverter unit and apparatus therefor

Country Status (4)

Country Link
US (1) US5483167A (en)
DE (1) DE4231351C2 (en)
GB (1) GB2270809B (en)
HK (1) HK1004038A1 (en)

Families Citing this family (24)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5631812A (en) * 1992-10-06 1997-05-20 Fanuc Ltd. Motor drive control method
US5703490A (en) * 1995-07-28 1997-12-30 Honeywell Inc. Circuit and method for measuring current in an H-bridge drive network
JPH1023756A (en) * 1996-06-28 1998-01-23 Mitsubishi Electric Corp Voltage inverter device and method for controlling it
KR100237611B1 (en) * 1997-01-14 2000-01-15 이종수 Apparatus of preventing inverter disorder for elevator
DE19817336C2 (en) * 1998-04-18 2000-10-19 Elotherm Gmbh Device and a method for detecting a short circuit in an inverter bridge
JP4093678B2 (en) * 1999-05-11 2008-06-04 三菱電機株式会社 Electric motor control device
JP2001147243A (en) * 1999-11-24 2001-05-29 Mitsubishi Electric Corp Analog-signal detection circuit and ac-side current detector for semiconductor power conversion apparatus
JP2001178146A (en) * 1999-12-17 2001-06-29 Keihin Corp Portable generator
KR100505049B1 (en) * 2003-03-26 2005-08-03 엘에스산전 주식회사 Error diagnosis method for inverter
US7154277B2 (en) * 2003-08-29 2006-12-26 Abb Inc. Method and apparatus for detecting faults in AC to AC, or DC to AC power conversion equipments when the equipment is in a high impedance mode
KR100566437B1 (en) * 2003-11-11 2006-03-31 엘에스산전 주식회사 Inverter fault detection apparatus and method using phase shifting
GB2409355A (en) * 2003-12-20 2005-06-22 Bombardier Transp Gmbh Detecting failure in a converter
DE102004034333A1 (en) * 2004-07-09 2006-05-18 Siemens Ag Method for controlling a power converter connected to a DC voltage source
US7005822B1 (en) * 2004-09-21 2006-02-28 Motorola, Inc. Torque ripple reduction for a voltage mode motor controller
CN100550562C (en) * 2004-12-27 2009-10-14 丹福斯驱动器公司 Be used for detecting the method for the earth-fault conditions of motor controller
JP2006211782A (en) * 2005-01-26 2006-08-10 Yaskawa Electric Corp Servo controller
TWI279955B (en) * 2005-09-09 2007-04-21 Realtek Semiconductor Corp Switching regulator with over-current protection
JP4741391B2 (en) * 2006-03-09 2011-08-03 オムロンオートモーティブエレクトロニクス株式会社 Ground fault detection device for motor drive circuit
FI120565B (en) * 2007-12-20 2009-11-30 Abb Oy Method and apparatus for detecting grounding
DE102010030133A1 (en) * 2010-06-15 2011-12-15 Robert Bosch Gmbh Circuit arrangement for determining a voltage fluctuation of conductor potentials in an ungrounded electrical network
RU2460190C1 (en) * 2011-04-06 2012-08-27 Государственное образовательное учреждение высшего профессионального образования "Национальный исследовательский Томский политехнический университет" Method to control and provide robustness of three-phase induction motor of rotary or reciprocal motion
US20130043858A1 (en) * 2011-08-19 2013-02-21 Texas Instruments Incorporated Maximum power point tracking circuit generic to a variety of energy harvester devices
CN107271808B (en) * 2017-05-17 2019-06-11 浙江万里学院 Multi-electrical level inverter method for diagnosing faults based on infrared thermal imaging technique
US10756532B2 (en) * 2018-07-13 2020-08-25 Kohler Co. Ground fault minimization

Family Cites Families (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2115807C3 (en) * 1971-04-01 1974-10-17 Siemens Ag, 1000 Berlin Und 8000 Muenchen Earth fault protection device for electrical devices with star-connected windings
JPS58148618A (en) * 1982-02-25 1983-09-03 三菱電機株式会社 Ground-fault protecting device
US4423459A (en) * 1982-04-05 1983-12-27 Siemens-Allis, Inc. Solid state circuit protection system and method
US4589052A (en) * 1984-07-17 1986-05-13 General Electric Company Digital I2 T pickup, time bands and timing control circuits for static trip circuit breakers
KR900008393B1 (en) * 1986-10-02 1990-11-17 미츠비시 덴키 가부시키가이샤 Over current protection circuit for inverter apparatus
JPS63182634A (en) * 1987-01-24 1988-07-27 Minolta Camera Co Ltd Automatic focus adjusting device
JPS6434180A (en) * 1987-07-27 1989-02-03 Toshiba Corp Controlling device of power converter
DE3923594A1 (en) * 1988-07-29 1990-02-01 Siemens Ag Earth current monitor for three=phase drive motor - has two parallel signal processing circuits controlling automatic cut=out device
US4965504A (en) * 1988-09-20 1990-10-23 Hitachi, Ltd. Control apparatus for inverter for driving AC motor
GB2231216B (en) * 1989-04-05 1993-04-14 Mitsubishi Electric Corp Zero-phase sequence current detector
JP2558884B2 (en) * 1989-08-17 1996-11-27 九州電力株式会社 Distribution line ground fault protection device
DE69025045T2 (en) * 1989-12-04 1996-05-30 Toshiba Kawasaki Kk Bridge type power converter with improved efficiency
FR2665584B1 (en) * 1990-08-01 1992-10-16 Merlin Gerin ELECTRONIC SHUTTER WITH SHORT DELAY FUNCTION.
JPH0490388A (en) * 1990-08-04 1992-03-24 Dainippon Printing Co Ltd Gathering device
JPH04210779A (en) * 1990-12-14 1992-07-31 Mitsubishi Electric Corp Ground fault detector for inverter unit and detecting method

Also Published As

Publication number Publication date
GB9219560D0 (en) 1992-10-28
US5483167A (en) 1996-01-09
DE4231351A1 (en) 1994-03-24
DE4231351C2 (en) 2000-02-10
GB2270809A (en) 1994-03-23
GB2270809B (en) 1996-06-26

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Legal Events

Date Code Title Description
PF Patent in force
PC Patent ceased (i.e. patent has lapsed due to the failure to pay the renewal fee)

Effective date: 20040916